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United States Patent | 6,189,059 |
Sotek ,   et al. | February 13, 2001 |
The operation of any desired number of initially unidentified slave stations in a communications system is possible. An identification procedure with a subsequent address assignment is carried out by a master station M, in that all the slave stations simultaneously output bit by bit, via open-drain output circuits OC, individual identification codes ID which are stored in them.
Inventors: | Sotek; Karel (Munich, DE); Mehrgardt; Sonke (Deisenhofen, DE); Born; Christine (Ottobrunn, DE); Endriss; Heinz (Stockdorf, DE); Gossmann; Timo (Munich, DE) |
Assignee: | Infineon Technologies AG (Munich, DE) |
Appl. No.: | 170184 |
Filed: | October 13, 1998 |
Apr 10, 1996[DE] | 196 14 238 |
Current U.S. Class: | 710/104; 710/8; 710/9; 710/10; 710/116 |
Intern'l Class: | G06F 013/00 |
Field of Search: | 710/9,10,104,8,116 |
4463445 | Jul., 1984 | Grimes | 710/116. |
5226123 | Jul., 1993 | Vockenhuber | 710/131. |
5361005 | Nov., 1994 | Slattery et al. | 326/56. |
5499242 | Mar., 1996 | Lee et al. | 370/445. |
5524269 | Jun., 1996 | Hamilton et al. | 710/9. |
5787306 | Jul., 1998 | Michael | 710/9. |
5805817 | Sep., 1998 | Yu et al. | 709/224. |
6003097 | Dec., 1999 | Richman et al. | 710/8. |
Foreign Patent Documents | |||
0 051 332 B1 | May., 1982 | EP. | |
0 221 303 A2 | May., 1987 | EP. | |
2 217 561 | Nov., 1989 | GB. |